Recently I had to prep for medical stuff and therefore had 24-hours to kill. So I set myself up and built a Master Grade Exia kit over about 12 hours + 2 more later for the weapons. This was my first Gundam 00 kit after previously building 2 Gundam IBO kits. The Exia, being very thin, has a different build process. The IBO models both had an inner skeltal frame, kinda resembing a T-1000. For this one, you build the limbs, head, pelvis and torso separately, then snap them together.
The Exia introduced some new elements for me. We've got clear gummy-windows, a removable GN drive (the engine, sorta), and an arsenal of weapons that almost seems over the top. But enough prattle, here's pics.